brains
a nerve
spinal cord
all of the above
1 month
1 year
10 years
100 years
150 meters per second
1 meter per second
1 foot per second
100 miles per hour
they help carry oxygen to different parts of your body
they regenerate very quickly
they are very long compared to other cells in the body
they do not have a nucleus
muscle
the brain
nerve
wire
electrical impulses
proteins
hormonal
telegraph
True or False: Damage to your nervous system can cause paralysis.
bipolar neurons
multipolar neurons
Purkinje neurons
pyramidal neurons
stem cells
liver cells
muscle cells
skin cells
prison cells
glial cells